Pro-Series Waterfowl Shotguns from Mossberg. Purpose-built for hardcore duck hunting. These Pro-Series shotguns were developed with field-proven parts and special finishes, like boron nitride (see cutaway image on left), to ensure peak performance time-after-time, and specifically designed with stainless steel recoil spring to stand up to the elements during long, wet seasons spent in the blind. Both models feature a PRO-SERIES WATERFOWL engraved receiver; Mossy Oak® Shadowgrass Blades? camo; fiber optic front sight; three choke tube set; and Stock Drop System that provides drop-at-comb adjustment shims for a customizable fit.